Before jumping to conclusions, please also check the free 7.5+GR-5.2 combination (it’s the latest one, for now).
Based on your results, I think it might be a compatibility issue with the iOS version. SH3D and some plugins try to maintain a consistent look with the operating system. Sometimes the operating system doesn’t follow its own principles.
I could send you a version without the iOS-specific adaptations.
It will certainly look ugly, but it will probably work.